Due to a few members of Megadeth becoming born again Christians, they are morally unable to play several songs from this album. To solve this problem, the Gauntlet rewrote one of their classic songs with religion-friendly working.

Unlockable weapons and maps are available as purchasable downloadable content for Sven Co-op (a cooperative mod for Half-Life). All players who previously donated prior to DLC release will need to repurchase the DLC via Steam Store.